Home / 317,916.18-438,723-174,675.78

Finding the Fourth Proportional to 317,916.18, 438,723 and 174,675.78

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Solution

The fourth proportional to 317,916.18, 438,723 and 174,675.78 is: 241,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,916.18 : 438,723 = 174,675.78 : x
  2. Step 2: Convert to fraction form
    317,916.18/438,723 = 174,675.78/x
  3. Step 3: Cross multiply
    317,916.18x = 438,723 × 174,675.78
  4. Step 4: Simplify right side
    317,916.18x = 76,634,282,228.94
  5. Step 5: Solve for x
    x = 76,634,282,228.94/317,916.18
  6. Step 6: Final answer
    x = 241,051.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.